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  2. Benign tumor - Wikipedia

    en.wikipedia.org/wiki/Benign_tumor

    Diagram showing two epithelial tumors. The upper tumor is a benign tumor that is non-invasive. Benign tumors are usually round in shape and encapsulated by fibrous connective tissue. The lower picture depicts a malignant tumor. It is irregularly shaped, vascular, and it is invasive, crossing the basement membrane.

  3. Lipoma - Wikipedia

    en.wikipedia.org/wiki/Lipoma

    A lipoma is a benign tumor made of fat tissue. [1] They are generally soft to the touch, movable, and painless. [1] They usually occur just under the skin, but occasionally may be deeper. [1] Most are less than 5 cm (2.0 in) in size. [2] Common locations include upper back, shoulders, and abdomen. [4] It is possible to have several lipomas. [3]

  4. Angiomyolipoma - Wikipedia

    en.wikipedia.org/wiki/Angiomyolipoma

    Angiomyolipoma seen as a hyperechoic mass in the upper pole of an adult kidney on renal ultrasonography. Renal ultrasonography of a person with tuberous sclerosis and multiple angiomyolipomas in the kidney: Measurement of kidney length on the US image is illustrated by '+' and a dashed line. CT scan of a renal angiomyolipoma.

  5. List of ICD-9 codes 140–239: neoplasms - Wikipedia

    en.wikipedia.org/wiki/List_of_ICD-9_codes_140...

    209.5 Benign carcinoid tumors of the appendix, large intestine, and rectum 209.6 Benign carcinoid tumors of other and unspecified sites Benign neoplasms (210–229)

  6. Teratoma - Wikipedia

    en.wikipedia.org/wiki/Teratoma

    Teratomas commonly are classified using the Gonzalez-Crussi [20] grading system: 0 or mature ; 1 or immature, probably benign; 2 or immature, possibly malignant (cancerous); and 3 or frankly malignant. If frankly malignant, the tumor is a cancer for which additional cancer staging applies. [citation needed]

  7. Pilomatricoma - Wikipedia

    en.wikipedia.org/wiki/Pilomatricoma

    Pilomatricoma is a benign skin tumor derived from the hair matrix. [ 2 ] [ 3 ] These neoplasms are relatively uncommon and typically occur on the scalp, face, and upper extremities. Clinically, pilomatricomas present as a subcutaneous nodule or cyst with unremarkable overlying epidermis that can range in size from 0.5 to 3.0 cm, but the largest ...